Yeast starters are small worts of 1L or more that contain no hops. The primary purpose is to awaken and grown the yeast supplied in a vial or smack-pack. Typical starter wort is around or under 1.040 in gravity.

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Storing mason jars of wort, for yeast starters, at room temperature

I hate making yeast starters. I want to make 5 gallons of wort and fill up a bunch of mason jars, and use these mason jars to make my yeast starters in the future. I also want to store the mason jars ...
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Minimal airlock activity

So I've just finished my 3rd all grain brew yesterday, first time trying a stout. After 24 hours, I'm only getting ~4 bubbles per minute on the airlock. Last night about 8 hours after pitching the ...
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Are starter sizes meant to be actual volumes or container sizes?

I've seen a lot of references to 1L/1000mL starters being made with anywhere from 2 cups (~473mL) to 650mL of water and half a cup of DME. The 1L size seems to refer to the expected container (a 1L ...
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Scaling up from a colony

I am preparing to start my own small yeast bank and I was wondering what is the optimal method for scaling up to a starter from a single colony. What step sizes should I use? What strength of wort ...
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Unwanted yeast flavor last 2 brews (using starter)

The last 3 all grain batches I've done have been using US-05 (IPAs) or 04 (porter) with yeast starters, which I'm relatively new to. Not sure what I'm doing wrong but the IPAs taste so similar despite ...
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What's the best method of storing yeast for 4 to 6 months in the refrigerator?

I've done a bit of research into different options of yeast storage and so far the least time consuming and most accessible methods seem to be: Making a slant from a yeast sample taken directly from ...
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46 views

Starter wort volume = BEFORE or AFTER 10-15 minute boil

Being fairly new to used starters, I'm somewhat confused as to how much volume of water to boil when adding DME to create a starter. For instance, if the Kalkulator I'm using says to start with 2 L ...
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Should a yeast starter be kept in the dark?

I started using a yeast starter for the last two beers. So far I haven't shielded it from the light. Should I? The first is currently aging - the second was pitched yesterday. I'm thinking light is ...
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Is these yeast starter calculation correct?

I’m making my first yeast starter, and want to confirm my calculations. OG = 1,059 Batch size(post boil) = 9,2 Liters Wyeast Ale yeast creating date: 07.des. 2015. (only 36-37 billions cells left..) ...
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1answer
67 views

My first yeast starter with a stir plate, possibly a disaster

This morning I smacked my first smack pack, and about 10 times, each time a little harder because deep depression would set in if the goodies spewed across the room. I finally got it, or so I thought. ...
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1answer
42 views

Is yeast cell count a constant function of starter size?

Does the size of a starter always dictate the cell count of yeast irregardless of how much yeast you started with (ignoring other factors such as aeration, wort density etc)? For instance let's take ...
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1answer
105 views

How long should I expect to wait before seeing activity in my yeast starter?

I usually see activity in my yeast starters in the first twelve hours after pitching the yeast. This time, however, I haven't seen anything for 48 hours. No bubbling, no signs of floating yeast and it ...
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What is the minimum amount of time required for a yeast starter?

It is generally advised to leave a yeast starter for at least 24 hours to get optimal yeast growth. If I only have a few hours, is there any point making a starter from my liquid yeast pack? Is ...
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2answers
90 views

Krausening / Pitching Actively-Fermenting Wort

I heard on one of the old Jamil shows that pitching actively-fermenting starter is a good way to get noticeable but subtle yeast character in a beer. You need to start with an adequate amount of ...
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1answer
64 views

Sour Starter From Dregs

I bought Nordic Saison from Hill Farmstead and loved it. I have a Saison recipe that I really like and I want to try and sour that. I took the dregs from a 750ml of the Nordic and threw it in a small ...
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1answer
62 views

Preparing yeast for secondary fermentation

I have a barleywine in progress that seems to have stalled around 9% ABV with some residual sweetness I'd like to try and reduce. After 2.5 weeks in primary all activity had stopped so I racked off ...
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134 views

If oxygen is important mostly during the lag phase why not pre-oxygenate the yeast pitch prior to inoculation?

I feel that this question could potentially have more specific and direct sub questions but for now I would like to simply pose it as "why not oxygenate active yeast prior to pitching instead of ...
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71 views

What is the specific role of yeast in wine making? [closed]

I'm a senior student, experimenting on alcohol concentration of wine using different variables. My variables are white wine yeast and brewing yeast and whilst I know the main role, I would like to ...
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3answers
554 views

Overflowing yeast starter

I made a yeast starter last night with 1500 ml of water, 150 g DME and a Wyeast 1056 smack pack. After boiling, total volume was just under 1500 ml. I put it in a 2 liter erlenmeyer flask on a stir ...
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217 views

Pitching a Yeast Starter Before High Krausen

I made my first two lagers last weekend and will make two more this weekend. After the boil, I chilled the wort to 75*F/24*C, oxygenated it and put the carboy in my chest freezer so it could get down ...
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1answer
102 views

Erlenmeyer flask rinsed in StarSan

For the first time I'm making a starter in my Erlenmeyer flask. I soaked, emptied, and drained the flask pretty good save the foam that is normal. The funnel, bung and blowoff tube were also soaked. ...
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1answer
61 views

Two yeast packs in one starter?

Assume one yeast pack in one starter results in double the cell count; i.e., 2x. Would two yeast packs in the same exact starter result in double the cell count, i.e., 4x, somewhat close to 4x, or ...
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1answer
103 views

Can we use monoammonium phospate (MAP) as yeast nutrient for wine making?

Wine making is not common in my country so it's difficult to buy wine ingredient especially Diammonium Phosphate (DAP) as yeast nutrient. After look in local shop, there's a shop selling Monoammonium ...
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1answer
82 views

Should I decant my lager starter

I made a starter for this lager we're brewing. As usual, I started it three days early, fermented at 70F and put it in the fridge after the krausen died down. I'm sitting here on brew day thinking ...
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1answer
158 views

Improvements for Geordie Winter Warmer

I've just started a single can Geordie Winter Warmer kit and having read some negative reviews about this kit turning out "weak" and "watery" and like "beer flavoured soda water" I'm naturally having ...
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Not seeing fermentation on lager's primary fermentation

We're currently trying to get a lager to go through its primary fermentation but after 2 days, we haven't seen any action or changes on the surface of the wort. The wort had a full packet of yeast ...
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38 views

keeping cropped yeast in good health

If I needed to keep the harvested yeast in the fridge for longer than I needed, could I just make a new starter and leave it to ferment out and then put it in the fridge again. Would this help to keep ...
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1answer
95 views

Can I reuse a failed starter?

The proprietor at my LHBS gave me an unsold Wyeast 1968 smack pack that was well over a year old. I made a starter for it just to see if it was still viable. It was not viable. Now I need to make a ...
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59 views

Pure Carapils starter wort?

I was reading White Labs' Homebrew Starter Tips page, and the following got me thinking: Keeping the Original Gravity low is important because you want to keep the yeast in its growth phase, ...
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256 views

Why toss the starter wort?

I've wondered about this for a while: most 'how to make a yeast starter' instructions I've seen suggest using only the yeast-rich sludge, and tossing most of the starter medium. This makes sense if ...
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Yeast Starter Stopper & Sanitization

I'm going to be making my first yeast starter, for a higher gravity beer. While reading starter guides, and watching videos, I've noticed that there are several different techniques and opinions for ...
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298 views

Saving a yeast starter

I made a beer 2 weeks ago and had 2 liters of yeast starter I made for it. I used about 1.5 liters and saved the rest for later in a sanitized jar in the fridge. Is the starter still fine? Is there ...
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92 views

2 yeast starts with one stir plate

I am planning on brewing 2 beers this weekend. I want to make starters for both of them but I only have 1 stir plate. I do have 2 Erlenmeyer flasks. How would be the best way to go about making both ...
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229 views

Gross layer of foam at the end of fermentation and aging

I experienced few times a gross layer of foam when fermentation finishes. But the beer was fine, no symptoms of contamination neither off-flavors. I never measure the depth of foam but it can have ...
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Proposed yeast starter

Within the next few days I'll be 'brewing' 100 litres of ale from slightly concentrated sterile wort. I've used these kits before with decent results, but this time I want to try a liquid yeast ...
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yeast starter, always a good addition?

If a recipe does not call for a yeast starter, would it help or be harmful for me to add a yeast starter? The current brew I have going has a O.G. of 1.070.
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How long to refrigerate yeast starter before pitching into wort?

When I brewed last night, my yeast starter had been in the refrigerator for 24 hours and it had "a lot" of yeast settled to the bottom. I am brewing tonight, and my yeast starter has only been in the ...
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1answer
55 views

Is a yeast starter required for this recipe

According to brewers-friend, I am short 139 billion yeast cells for a recipe I was estimating. I was planning on trying something along the lines of this recipe. My original idea was to re-hydrate a ...
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511 views

Saving and storing yeast straight from the packet

I'm currently brewing 1 gallon batches. Say I have a liquid yeast smack pack that's for a 5 gallon batch. What I'd like to do is use about 1/4 to 1/3 of the pack and store the rest for later brews. ...
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1answer
64 views

Shelf life of canned and unfermented wort?

I asked in a prior post about canning wort to have it handy for yeast farming. What would the shelf life be of canned, unfermented wort? Any special steps to extend shelf life, perhaps adding hops? ...
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Are there dry yeasts that rival liquids for IPA's? [closed]

My HBS just raised the prices of various liquid yeasts. Are there dry yeasts that are as good for IPA's? Recommendations please & should they be pitched dry or as a starter? Thanks.
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How does a yeast starter affect original gravity reading?

I've prepared a 1qt (~1L) yeast starter according to instructions from Wyeast.com. I didn't measure its gravity, but in theory it should be about 1.040. I am brewing a 5 gallon batch of high gravity ...
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2answers
127 views

Why Reuse Yeast?

Sorry for seeming clueless, but I am clueless. I've only brewed about 15 batches, or less, of extract beers. Thus far, I've always bought prepackaged recipe "kits" similar to a Betty Croker cake mix. ...
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493 views

Canning unfermented wort for yeast farming?

Canning is often used to preserve foods: the microorganisms inside mason jars are killed by a boiling water bath and sealed when removed. Small amounts of unfermented wort are useful when yeast ...
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1answer
372 views

May I Aerate AFTER Pouring Yeast into the Carboy?

I extract brew, and the kits I buy from NB tell me to add cold water to the wort to get a total of 5 gallons, and then aerate before adding the yeast. However, if I do this I will always have more ...
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1answer
440 views

Will a Yeast Starter Exposed to Sunlight Materially Effect the Beer?

I know not to expose a fermenting carboy to sunlight, but is it OK to expose a yeast starter? I have two of them next to a window with blinds that are ineffective at blocking sunlight. I didn't think ...
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535 views

Always making a starter vs. following package description

I have noticed that the smackpacks say on the package that the package is meant for a 5 gal. batch and that you should pour the pack directly into the wort. On the otherhand - nearly everyone tells ...
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212 views

Liquid yeast, do need to make a starter?

I'm making mini batches with IPAs(4-5 liters/ca 1,5 gallon), and with my three first brews I've used dry yeast. On my next mini batch I'll use liquid yeast(WLP005), do I need to make a starter or is ...
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Yeast starter with YM-Medium under aerob conditions?

As far as I know the most common yeast starters are malt extracts which are sealed with an airlock. But the few times I worked with yeasts in the lab we used YM-Medium (Yeast extract-Malt extract) to ...
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371 views

What are the characteristics of baker yeast?

I am looking to brew some ginger beer and other simple stuff. I wonder what are the characteristics of baker yeast? Will they do for a cyder beer ? What are the disadvantages? In Europe we have ...